JP6859574B2 - A content drop release structure compatible with compressed gas and a compressed gas type product equipped with this content drop release structure. - Google Patents

Description

The present invention has a content drop release structure compatible with compressed gas, that is, the content to be released contained in the container body together with the compressed gas is discharged from the discharge port to the external space area in a drop manner like a pump type product. Regarding the contents drop release structure.

By reducing the pressure of the contents driven from the container body to the stem side by the compressed gas and then narrowing down the magnitude of the contents flow rate, the contents of the container in the aerosol state are as if they were in the output state of the pump type product. It is intended to be dropped and released.

That is, by disregarding the stereotype that the contents of the aerosol container body are output from the discharge port in a so-called straight-ahead state such as spraying, the pressure of the contents in the high-pressure state of the aerosol container body is positively reduced, and further, the pressure is lowered. After reducing the flow rate, it is released to the external space area.

The content drop discharge structure of the present invention reduces the pressure, speed, etc. of the content flowing from the container body to the stem side in a high pressure state by the action of the compressed gas, and the content flows out to the external space area per unit time. It has the effect of narrowing down the amount.

The contents after this narrowing down move to the discharge port through the flow direction changing passage part such as the L-shaped discharge passage part and the step-shaped discharge passage part, and drop downward from the discharge port as if it were a pump type product. Be released.

In the present specification, the discharge port side in the longitudinal direction of the L-shaped discharge passage portion 1a and the moving end side in the longitudinal direction of the coil spring 3w for urging the piston (the left side of FIGS. 1 to 4 respectively) are referred to as “front”. The opposite side (right side of FIGS. 1 to 4) is referred to as "rear". Further, the vertical direction shown in the drawing is described as "vertical", and the positional relationship between the vertical and horizontal directions is described according to the position shown in the drawing.

Conventionally, it has been proposed to provide a flow rate adjusting action portion inside a pressing button to which a stem of an aerosol type product is attached (Patent Document 1).

This flow rate adjusting action unit is an adjusting mechanism for stabilizing the amount of the contents discharged from the discharge port of the pressing button to the external space area regardless of the pressure change of the contents of the aerosol container.

Japanese Unexamined Patent Publication No. 2004-313841

In this way, adjusting the flow rate of the released contents of conventional aerosol-type products is, of course, based on the premise that the contents are discharged forward in a nearly straight-line manner, such as spraying and stream-like ejection, which can be said to be unique to aerosols. It is said.

In other words, there is almost no idea of dropping out the aerosol contents like a pump-type product.

The present invention is based on a new focus, such as abandoning the stereotype that the contents of an aerosol-type product are discharged forward in a substantially straight line, and that the contents of an aerosol can also be released as a drop by incorporating a decompression mechanism or the like. is there.

The present invention thereby realizes the same drop discharge as the pump-type product for the contents of the aerosol container using compressed gas, and provides a so-called intermediate version between the aerosol-type product and the pump-type product, which is convenient for the product user. The purpose is to improve the technology and enrich the technology.

That is, the purpose is to realize the dropout discharge peculiar to the pump type product while maintaining the advantages as the aerosol type product such that the contained contents of the container body are isolated from the outside air.

In addition, the entire pressure adjustment mechanism for reducing the pressure of the output contents of the stem has a unit structure that can be attached to each of the stem output side and the discharge passage input side, thereby managing the entire pressure adjustment mechanism in the production process. The purpose is to simplify the installation work.

The present invention solves the above problems as follows.
(1) A content drop release structure used for an aerosol container body (for example, an aerosol container body 6 described later) containing a compressed gas and contents to be released.
A content pressure adjusting unit (for example, a pressure adjusting unit 3 described later) arranged on the downstream side of a stem exhibiting a valve action (for example, a stem 4 described later), and
A flow rate adjusting unit (for example, a coal group-shaped flow rate adjusting unit 2 described later) arranged on the downstream side of the content pressure adjusting unit, and
A discharge passage portion (for example, an L-shaped discharge passage portion 1a described later, an upward step-shaped discharge passage portion 1a') provided on the downstream side of the flow rate adjusting portion is provided.
The one in the configuration mode is used.
(2) In (1) above
The content pressure adjusting unit is
A cylinder having an inflow portion and an outflow portion of the contents (for example, a sheath-shaped cylinder 3a and a lateral lid-shaped portion 3j described later), and
A piston (for example, a tubular piston 3r and a sheath-shaped piston 3t, which will be described later) that move inside the cylinder based on the pressure of the contents and change the flow path area of the outflow portion according to the amount of movement.
An elastic member (for example, a coil spring 3w described later) that urges the piston in a direction opposite to the movement based on the pressure of the contents is provided.
The one in the configuration mode is used.
(3) In the above (1) and (2),
The discharge passage portion is
Formed on the operation unit for setting the operation mode
The content pressure adjusting unit is
The unit structure is set so that it can be attached to the stem and the operation unit.
The one in the configuration mode is used.
(4) In the above (1), (2), (3),
The discharge passage portion is
It has a flow direction changing portion (for example, a ceiling surface 1c, 1c'described later) of the contents.
The one in the configuration mode is used.

The present invention is intended for a content drop release structure compatible with compressed gas having such a configuration and an aerosol-type product having this content drop release structure.

The present invention is based on the above-mentioned problem-solving means.
(11) By providing a so-called intermediate version between aerosol-type products and pump-type products, it is possible to improve convenience and technology for product users.
(12) While maintaining the advantages of an aerosol-type product, such as the contents of the container body being isolated from the outside air, it is possible to realize dropout discharge peculiar to pump-type products.
(13) The entire pressure adjustment mechanism that reduces the pressure of the output contents of the stem can be used as a unit structure to simplify the management and installation work of the entire pressure adjustment mechanism in the production process.
It has such an effect.

It is explanatory drawing which shows the stationary mode longitudinal section of the drop discharge mechanism used for the body of an aerosol container containing a compressed gas. It is explanatory drawing which shows the enlarged state of the part such as the pressure adjustment unit and the flow rate adjustment part of the drop discharge mechanism of FIG. It is explanatory drawing which shows the operation mode vertical cross section of the drop discharge mechanism of FIG. It is explanatory drawing which shows the application example of the pressing button which formed the step-like discharge passage part of the type different from FIG.

A mode for carrying out the present invention will be described with reference to FIGS. 1 to 4.

As a general rule, it is shown that the component of the alphabetical reference number used in each figure (for example, the L-shaped discharge passage portion 1a) is a part of the component of the numerical part of the reference number (for example, the pressing button 1). ing.

In FIGS. 1 to 4 (1'to 1f' are used only in FIG. 4).
1 is a pressing button as an operation unit for setting the operation mode of the forward release type.
Reference numeral 1a is an L-shaped discharge passage portion, which is the inside of the pressing button 1 and serves as a flow direction changing passage portion in which the contents discharged to the external space area change the flow direction from the upper direction to the left in the drawing.
1b is the vertical passage area on the upstream side of the L-shaped discharge passage.
1c is the upper end side of the vertical passage area 1b, and the ceiling surface as a flow direction changing part in which the outflow contents from the flow rate adjusting part 2 described later collide with each other.
1d is a horizontal passage area extending from the upper end side of the vertical passage area 1b to the downstream side thereof.
1e is a discharge port on the front end side of the lateral passage area 1d,
1f is a vertical tubular portion to which the flow rate adjusting portion 2 and the pressure adjusting unit 3, which will be described later, are attached in a fitted state, continuing downward from the lower end of the vertical passage area 1b and sequentially from the upper side of the inner peripheral surface thereof.
1'is a type of pressing button as an operation unit for setting the operation mode, which is operated in a tilted state with the aerosol container body 6 described later, tilted by an angle of about 90 to 180 degrees from the illustrated standing position.
In 1a', the contents discharged to the external space area are vertically upward stepped discharge as a flow direction changing passage portion in which the flow direction is changed from the upper direction in the figure to the left lateral direction and then changed upward again. Aisle,
1b'is the upstream vertical passage area of the upward stepped discharge passage portion 1a',
1c'is the ceiling surface as a flow direction changing portion of the upstream vertical passage area 1b', which has the same function as the ceiling surface 1c.
1d'is a downstream vertical passage area that is continuous upward from the upper end lateral side of the upstream vertical passage area 1b', and its lower end side peripheral surface acts as a flow direction changing portion.
1e'is the discharge port on the upper end side of the downstream vertical passage area 1d',
1f'is a vertical tubular portion that continues downward from the lower end of the upstream vertical passage area 1b'and exhibits the same function as the vertical tubular portion 1f.
Are shown respectively.

Also,
Reference numeral 2 denotes a columnar flow rate adjusting unit, which is fitted and fixed to the upper inner peripheral surface portions of the vertical tubular portions 1f and 1f'to reduce the flow rate of the contents per unit time.
2a is provided at three locations on the outer peripheral surface from the upper surface to the lower surface of the flow rate adjusting portion 2, and forms a narrow cross-sectional passage portion for reducing the flow rate between the vertical tubular portions 1f and 1f'and the inner peripheral surfaces. Grooves for passing contents,
Are shown respectively.

Also,
3 is fitted and fixed to the lower inner peripheral surface portions of the vertical tubular portions 1f and 1f', and is a pressure adjusting unit (content pressure adjusting unit) for reducing the pressure of the contents flowing into the flow rate adjusting unit 2. ),
3a is arranged in the transverse longitudinal direction, and the inflow contents move there in the circumferential direction of the inner surface, and the internal high pressure of the container body is reduced to a low pressure, for example, from 8.0 kgf to 1.0 kgf per square centimeter unit. Sheath-shaped cylinder that flows out toward the flow rate adjusting unit 2
3b is an outflow side upper tubular portion formed upward from the upper outer peripheral surface portion of the sheath-shaped cylinder 3a and fitted with the lower inner peripheral surface portions of the vertical tubular portions 1f, 1f ′.
3c is an upper hole portion for communicating the sheath-shaped cylinder 3a and the outflow side upper tubular portion 3b.
3d is an inflow side lower tubular portion formed downward from the lower outer peripheral surface portion of the sheath-shaped cylinder 3a and fitted with the upper end side inner peripheral surface of the stem 4, which will be described later.
3e is a lower hole portion that communicates the sheath-shaped cylinder 3a and the inflow-side lower tubular portion 3d.
3f is the rearward bottom surface portion of the sheath-shaped cylinder 3a in the vertical direction shown in the drawing.
3g is formed on the rearward bottom surface portion 3f, and the bottom surface ring convex portion that acts as a receiving portion of the tubular piston 3r described later in the stationary mode.
3h is a rear ring convex portion, which is formed on the inner peripheral surface on the opening side of the sheath-shaped cylinder 3a and exhibits an engaging action with the front ring convex portion 3n described later.
3j is a horizontal lid-shaped portion as a cylinder component, which is attached to the opening side portion of the sheath-shaped cylinder 3a so as to close the sheath-shaped cylinder 3a.
3k is an annular outer wall that forms part of the lateral lid-shaped portion 3j.
3 m is formed inside the annular outer wall 3k, and an annular inner wall that engages and sandwiches the opening-side tubular portion of the sheath-shaped cylinder 3a with the annular outer wall.
3n is formed on the front end side of the outer peripheral surface of the annular inner wall 3 m, and has a front ring convex shape that integrates the sheath-shaped cylinder 3a and the lateral lid-shaped portion 3j by engaging with the rear ring convex portion 3h in the front-rear direction. Department,
3p is a horizontal tubular portion 3j shown in the vertical direction, and 3q is a lateral tubular portion for outside air communication formed in the central region of the forward bottom portion 3p.
3r is a tubular piston arranged on the front side of the internal space area of the sheathed cylinder 3a.
3s is formed on the outer peripheral surface of the tubular piston 3r in a rearwardly spreading manner, and while a part thereof faces the upper hole portion 3c of the sheathed cylinder 3a, the remaining part is in close contact with the front inner peripheral surface of the sheathed cylinder 3r. Front skirt-shaped part,
3t is a sheath-shaped piston arranged in the internal space area of the sheath-shaped cylinder 3a in a state of being fitted with the tubular piston 3r.
The rear skirt-shaped portion 3u is formed on the outer peripheral surface of the sheath-shaped piston 3t in a front-spreading manner and is in close contact with the rear inner peripheral surface of the sheath-shaped cylinder 3a.
3v is a ring groove-shaped portion formed in the internal space region of the sheath-shaped piston 3t in a manner facing the outer peripheral space region of the lateral tubular portion 3q in the front-rear direction.
The 3w is guided by the lateral tubular portion 3q, and is disposed between the outer bottom surface portion of the base portion and the annular groove-shaped portion 3v, and an integral body of the sheath-shaped piston 3t and the tubular piston 3r is attached to the front. Coil spring,
S1 is a front space area inside the cylinder defined by a rearward bottom surface portion 3f of the sheath-shaped cylinder 3a and a front portion of the piston (cylindrical piston 3r + sheath-shaped piston 3t).
S2 is a cylinder internal peripheral space area (intermediate space area in the front-rear direction) for passing contents defined by the inner peripheral surface of the intermediate portion of the sheathed cylinder 3a and the outer peripheral surface of the intermediate portion of the piston (cylindrical piston 3r + sheathed piston 3t). ，
S3 is an inner peripheral surface on the rear opening side of the sheath-shaped cylinder 3a, a rear space area inside the cylinder for outside air communication defined by a lateral lid-shaped portion 3j and a sheath-shaped piston 3t.
Are shown respectively.

Also,
In No. 4, the upper end portion thereof is fitted inside the inflow side lower tubular portion 3d, and exhibits a valve opening action with a well-known stem gasket (not shown) with the downward movement operation of the pressing buttons 1, 1'. As a result, the stem through which the released contents on the container body side pass through the internal passage,
Reference numeral 5 denotes a housing in which a stem 4 and a well-known coil spring (not shown) for urging the stem 4 and the like are arranged, and also act as a storage space area for the discharged contents.
Reference numeral 6 denotes an aerosol container body containing the compressed gas and the released contents, which will be described later.
7 is a mounting cup, which is attached to the opening side peripheral edge of the aerosol container body 6 and holds the housing 5.
7a is a ring-concave undercut formed on the lower side of the connecting portion of the mounting cup 7 with the aerosol container body 6.
8 is a cover cap that is always fitted and held in the undercut 7a, that is, protects the pressing buttons 1, 1'without being removed even during the operation mode setting operation.
Are shown respectively.

Here, the pressing buttons 1, 1', the flow rate adjusting unit 2, the pressure adjusting unit 3, the stem 4, the housing 5, and the cover cap 8 are made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like. .. The coil spring 3w and the stem 4 of the pressure adjusting unit 3 may be made of metal.

The aerosol container body 6 is made of metal or plastic, and the mounting cup 7 is made of metal.

The basic features of the content drop release structure for compressed gas in the figure are:
(21) The aerosol container body 6 contains the contents to be released and the compressed gas for causing the contents to flow out to the external space area.
(22) The outflow portion of the stem 4 communicating with the aerosol container body 6 via the valve mechanism, the L-shaped discharge passage portion 1a formed on the pressing buttons 1, 1', and the upward step-shaped discharge passage portion 1a'. A pressure adjusting unit 3 and a flow rate adjusting unit 2 on the immediately downstream side thereof are provided between them.
(23) The L-shaped discharge passage portion 1a and the upward step-shaped discharge passage portion 1a ′ are provided with ceiling surfaces 1c and 1c ′ in the middle thereof for changing the flow direction of the passing contents to be discharged.
That is.

That is, the contents contained in the aerosol container body 6 together with the compressed gas pass through the pressure adjusting unit 3 provided on the outflow side of the stem 4 and the flow rate adjusting unit 2 on the immediately downstream side thereof, and the L-shaped discharge passage portion 1a. It is discharged from the upward step-shaped discharge passage portion 1a'to the external space area.

Further, the flow direction of the output contents from the flow rate adjusting unit 2 can be changed by the ceiling surfaces 1c and 1c'of the L-shaped discharge passage portion 1a and the upward step-shaped discharge passage portion 1a'.

The reason for forcibly changing the flow direction is to suppress the momentum of the contents output from the flow rate adjusting unit 2 and to surely discharge the contents at the discharge ports 1e and 1e'.

In the illustrated aerosol type product, the valve mechanism (a mechanism consisting of a stem hole for passing the contents and a stem gasket that opens and closes the stem hole) is opened from the closed state in the stationary mode by pushing down the pressing buttons 1, 1'. Move to.

By the opening operation of the valve mechanism, the contents contained in the aerosol container body 6 pass through the valve mechanism and the inner passage portion of the stem 4, and then flow into the cylinder internal circulation space area S2 of the sheath-shaped cylinder 3a from the lower hole portion 3e. ..

The contents flowing into the sheath-shaped cylinder 3a move in the circumferential direction in the cylinder internal circulation space area S2 outside the piston (cylindrical piston 3r + sheath-shaped piston 3t), and flow out from the upper hole portion 3c of the sheath-shaped cylinder. The process proceeds to the flow rate adjusting unit 2 via the shape portion 3b.

When the inflow contents pass through the pressure adjusting unit 3 including the sheath-shaped cylinder 3a and the piston (cylindrical piston 3r + sheath-shaped piston 3t), the pressure is reduced per square centimeter as described above, for example, the container body. It is reduced from 8.0kgf inside to 1.0kgf.

This pressure drop occurs when the piston (cylindrical piston 3r + sheath-shaped piston 3t) moves rearward according to the pressure of the contents flowing in from the input side (lower hole portion 3e), and the front skirt-shaped portion 3s. This is because the tip portion narrows the cross-sectional area of the outflow path from the cylinder inner peripheral space area S2 in the upper hole portion 3c.

By passing the outflow contents from the pressure adjusting unit 3 through each groove-shaped portion 2a of the flow rate adjusting portion 2, the contents per unit time in the L-shaped discharge passage portion 1a and the upward step-shaped discharge passage portion 1a' The physical flow rate is smaller than that of the outflow side upper tubular portion 3b. When the degree of decrease was verified, it was about 1/4 when the internal pressure was 8.0 kgf.

In the stationary mode of FIGS. 1, 2 and 4,
(31) The stem 4 is urged to the uppermost position by the elastic action of a well-known coil spring (not shown).
(32) The pressure adjusting unit 3, the flow rate adjusting unit 2, and the pressing buttons 1, 1'integrated with the stem 4 are also set at the uppermost positions.
(33) A well-known valve mechanism on the stem side (not shown) is held in a closed state by a well-known upward elastic force on the stem 4 at its valve action portion (stem hole portion and stem gasket for opening / closing the hole portion). ing.

That is, by setting and holding the valve acting portion in the closed state, the contents contained in the aerosol container body 6 are prevented from flowing out to the downstream side at the valve acting portion inside the housing 5.

In the operation mode (see FIG. 3) in which the user presses down the pressing buttons 1, 1',
(41) The stem 4 interlocking with the pressing buttons 1, 1'shifts downward in a manner that opposes the elastic urging force upward, and the valve acting portion changes from the closed state to the open state in the stationary mode.
(42) With the transition of the valve action part to the open state, the contents contained in the aerosol container body 6 compatible with the compressed gas are:
"Well-known dip tube (not shown) -housing 5-open valve action part-internal passage of stem 4-lower hole 3e-cylinder inner circulation space S2-upper hole 3c-outflow side upper passage 3b -It is discharged from the discharge ports 1e and 1e'to the external space area through the tunnel-shaped portion 2a-L-shaped discharge passage portion 1a and the upward step-shaped discharge passage portion 1a'".

The content passing through the cylinder internal circulation space area S2 of the pressure adjusting unit 3 passes through the so-called front gap portion of the upper hole portion 3c, that is, the front portion of the hole portion on the left side of the outer peripheral surface of the front end side of the front skirt-shaped portion 3s. Then, it also flows into the front space area S1 inside the cylinder. This anterior gap portion is also formed in the stationary mode as is clear from FIG.

As described above, the pressure adjusting unit 3 has a piston (cylindrical piston 3r and sheath-shaped piston 3t) in the internal space area of the coupling integrated portion of the sheath-shaped cylinder 3a and the lateral lid-shaped portion 3j, and the coil spring 3w. It is arranged in a forward urging state based on the elastic action.

In the stationary mode in which the contents do not flow into the lower hole 3e of the pressure adjusting unit 3, the tubular piston 3r and the sheathed piston 3t are set to the front positions by the elastic action of the coil spring 3w (see FIG. 2). ).

The tubular piston 3r at the foremost position is set to be in a received state in which its front end surface portion is in contact with the bottom ring convex portion 3g of the sheath-shaped cylinder 3a.

When the operation mode is set and the contents contained in the housing 5 or the aerosol container body 6 flow into the cylinder internal circulation space area S2 of the pressure adjusting unit 3 from the lower hole 3e due to the action of the compressed gas, the pressure thereof. The tubular piston 3r and the sheath piston 3t are retracted.

The piston retracts here
(51) The contents that have flowed into the cylinder internal circulation space area S2,
The forward pressure acting on the annular first end face, inner peripheral surface, and bottom surface of the front skirt-shaped portion 3s of the tubular piston 3r and its base, respectively, and
Rear direction acting on the annular second end face, inner peripheral surface, and bottom surface (approximately the same total area as the first end face, inner peripheral surface, and bottom surface) of the rear skirt-shaped portion 3u of the sheath-shaped piston 3t and its base, respectively. As the pressure offsets
(52) The front surface of each of the tubular piston 3r including the front skirt-shaped portion 3s and the inner sheath-shaped piston 3t of the contents flowing into the cylinder internal front space area S1 from the above-mentioned front gap portion of the upper hole portion 3c. The backward pressure acting on the whole
It is superior to the forward elastic force of the coil spring 3w with respect to the tubular piston 3r and the sheathed piston 3t.
Because.

Here, at the start of the shift from the stationary mode to the operating mode, the annular front end surface of the tubular piston 3r is in contact with the bottom ring convex portion 3g of the sheathed cylinder 3a (rearward bottom surface portion 3f).

When the contents flow into the front space area S1 inside the cylinder in the state of contact between the tubular piston 3r and the bottom ring convex portion 3g, the contents come into contact with the bottom ring convex portion 3g on the front surface of the tubular piston. The content pressure acts backward on the front end surface and the outer peripheral surface of the front skirt-shaped portion 3s.

The tubular piston 3r moves slightly rearward due to the pressure of the contents on the outer peripheral surface of the front skirt-shaped portion and the like, and the annular front end surface of the tubular piston is separated from the bottom ring convex portion 3g of the sheath-shaped cylinder 3a.

Along with this separation, the annular front end surface of the tubular piston 3r, which had been in contact with the bottom ring convex portion 3g, and the inner sheath-shaped piston front portion (front end surface portion, central front bottom surface portion) are also moved backward. Content pressure acts. Due to this backward pressure action, the tubular piston 3r and the sheath-shaped piston 3t integrated with the tubular piston 3r retreat in a form that opposes the elastic force of the coil spring 3w, and shift to the operation mode.

When the shift from the stationary mode to the operating mode is started, the retracting operation of these pistons is ensured by increasing the content pressure in the rear direction acting on the tubular piston 3r and the sheathed piston 3t. It becomes.

As a method for increasing the content pressure in the backward direction at the start of the shift from the stationary mode to the operating mode, for example,
(61) The bottom ring convex portion 3g is formed on the center side of the rearward bottom surface portion 3f in a state where the radial width thereof is reduced.
(62) The bottom ring convex portion 3g is formed in a state of being scattered in the circumferential direction of the rearward bottom portion 3f.
Etc. are used.

In the case of (61) above, the area of the front end surface portion of the tubular piston 3r that is not in contact with the bottom ring convex portion 3g in the stationary mode is set to be larger than that shown in the figure, and the entire front end surface portion at the start of the shift is set. The pressure on the contents in the backward direction increases, so to speak.

Due to the increased content pressure in the rear direction, the tubular piston 3r and the sheath-shaped piston 3t at the start of the shift from the stationary mode to the operating mode are surely retracted in a form resisting the elastic force of the coil spring 3w.

Further, in the case of the above (62), even in the stationary mode, the space area from the front portion of the sheath-shaped piston 3t to the rearward bottom surface portion 3f of the sheath-shaped cylinder 3a is the above-mentioned front gap portion of the upper hole portion 3c and the inside of the cylinder. It communicates with the orbiting space area S2.

Therefore, even when the shift from the stationary mode to the operating mode is started, the contents from the aerosol container body 6 immediately pass through the cylinder internal peripheral space area S2 and the front gap portion of the upper hole portion 3c and immediately pass through the cylinder internal front space area S1. Inflow to.

Due to the backward content pressure accompanying the inflow of the contents, the tubular piston 3r and the sheath-shaped piston 3t retreat more reliably against the elastic force of the coil spring 3w.

In the operation mode in which the tubular piston 3r is moved to the right side in the drawing, the tip portion of the front skirt-shaped portion 3s facing the upper hole portion 3c of the sheath-shaped cylinder 3a also retracts and serves as an inflow portion to the outflow side upper tubular portion 3b. The cross-sectional area of the inflow path of the upper hole is reduced (see FIG. 3).

The decompressed contents that have passed through the upper hole portion 3c, which has a smaller inflow path cross-sectional area than in the stationary mode, are the outflow side upper tubular portion 3b, the flow rate adjusting portion 2, and the L-shaped discharge passage portion 1a beyond that, an upward step. It flows into the shape discharge passage portion 1a', and is dropped and discharged from the discharge ports 1e and 1e'of each passage portion.

When the user stops the pressing operation of the pressing buttons 1, 1', the integrated body of the pressing button, the flow rate adjusting unit 2, the pressure adjusting unit 3 and the stem 4 is moved up by the elastic action of a well-known coil spring (not shown). It moves in the direction and returns to the stationary mode of FIGS. 1, 2 and 4.

Further, the tubular piston 3r of the pressure adjusting unit 3 and the sheath-shaped piston 3t integrated with the tubular piston 3r move forward due to the elastic action of the coil spring 3w, and return to the stationary mode positions of FIGS. 1, 2 and 4. To do.

As described above, the pressure adjusting unit 3 originally integrates the components of separate members such as the sheath-shaped cylinder 3a, the lateral lid-shaped portion 3j, the tubular piston 3r, the sheath-shaped piston 3t, and the coil spring 3w. It is a scabbard.

Further, the inflow side lower tubular portion 3d and the outflow side upper tubular portion 3b, which act as so-called inlets and outlets of the pressure adjusting unit 3, are the existing stem 4 and the pressing button 1 (vertical tubular portion) fitted with the existing stem 4, respectively. The shape corresponds to the portions 1f) and 1'(vertical tubular portion 1f'). The upper end side tubular portion of the stem 4 can be fitted to the vertical tubular portions 1f, 1f'of the pressing buttons 1, 1'.

That is, the existing mated pressure button and stem can be removed, and the pressure adjusting unit 3 of the present invention can be fitted and attached between them.

The procedure for assembling the pressure adjusting unit 3 is, for example,
(71) The tubular piston 3r and the sheathed piston 3t are fitted to each other.
(72) This fitted piston is placed in the sheath cylinder 3a from the side of the tubular piston 3r and arranged.
(73) The coil spring 3w is arranged in the annular groove-shaped portion 3v of the sheath-shaped cylinder 3a, and the coil spring 3w is arranged.
(74) A horizontal lid-shaped portion 3j is attached to the opening side of the sheath-shaped cylinder 3a, and the rear ring-shaped convex portion 3h of the sheath-shaped cylinder and the front ring-shaped convex portion 3n of the horizontal lid-shaped portion (annular inner wall 3 m). To guide the rear portion of the coil spring 3w to the lateral tubular portion 3q.
It becomes a procedure such as.

It goes without saying that the present invention is not limited to the above embodiments, for example.
(81) Instead of the flow rate adjusting unit 2, a cylindrical flow rate adjusting unit having a cylindrical shape and having an arbitrary number of narrow cross-section passages for reducing the flow rate in the axial direction and having a lotus root-shaped cross section is used.
(82) The groove-shaped portion 2a of the flow rate adjusting portion 2 is provided on the inner peripheral surface side of the vertical tubular portions 1f, 1f'.
(83) The number (from one) and thickness of the groove-shaped portions 2a provided in the flow rate adjusting portion 2 are changed according to the viscosity of the contents.
You may do so.

Aerosol-type products to which the present invention is applied include cleaning agents, cleaning agents, cooling agents, muscle anti-inflammatory agents, hair growth agents, hair dyes, hair styling agents, hair treatment agents, sunscreens, lotions, cleansing agents, and controls. For various uses such as sweat agents, cosmetics, shaving foams, foods, droplets (vitamins, etc.), pharmaceuticals, quasi-drugs, gardening agents, pesticides, pest repellents, animal repellents, deodorants, etc. There is something.

As the contents contained in the container body, various forms such as liquid, cream, and gel are used. The components to be blended in the contents are, for example, powders, oil components, alcohols, surfactants, polymer compounds, active ingredients according to each application, water and the like.

As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, magnesium chloride, silica, zinc oxide, titanium oxide, zeolite, nylon powder, barium sulfate, cellulose, and mixtures thereof. Etc. are used.

Oil components include silicone oil such as dimethylpolysiloxane, ester oil such as isopropyl myristate, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil and other fats and oils, liquid paraffin and other hydrocarbon oils, myristic acid and palmitin. Use fatty acids such as acid, stearic acid, linoleic acid, and linolenic acid.

As alcohols, monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol are used.

Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene alkyl ethers and polyglycerin fatty acid esters, amphoteric surfactants such as betaine lauryl dimethylaminoacetate, and alkyl chlorides. A cationic surfactant such as trimethylammonium is used.

As the polymer compound, hydroxyethyl cellulose, methyl cellulose, gelatin, starch, casein, xanthan gum, carboxyvinyl polymer and the like are used.

Active ingredients according to each application include dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, setting agents such as acrylic resin and wax, and ultraviolet rays such as 2-ethylhexyl paramethoxysilicate. Absorbents, vitamins such as retinol and dl-α-tocopherol, moisturizers such as hyaluronic acid, anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, pests such as pyrethroids and diethyl tolamide Repellents, antiperspirants such as zinc paraphenolsulfonate, refreshing agents such as camphor and menthol, anti-asthmatic agents such as ephedrine and adrenaline, sweeteners such as sclarose and aspartame, adhesives and paints such as epoxy resin and urethane, Use dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, and fire extinguishing agents such as ammonium dihydrogen phosphate and sodium hydrogen carbonate / potassium.

Further, suspension agents, emulsifiers, antioxidants, sequestrants and the like other than the above contents can also be used.

Compressed gas such as carbon dioxide gas, nitrogen gas, compressed air, oxygen gas, rare gas, and a mixed gas thereof is used as the propellant for content release firing.

(1'to 1f' are used only in Fig. 4)
1: Press button 1a: L-shaped discharge passage portion 1b: Vertical passage area 1c: Ceiling surface 1d: Horizontal passage area 1e: Discharge port 1f: Vertical tubular portion 1': Press button 1a': Upward step-shaped discharge passage portion 1b': Upstream vertical passage area 1c': Ceiling surface 1d': Downstream vertical passage area 1e': Discharge port 1f': Vertical tubular portion 2: Flow rate adjusting portion 2a: Groove-shaped portion

3: Pressure adjusting unit 3a: Sheath cylinder 3b: Outflow side upper tubular portion 3c: Upper hole portion 3d: Inflow side lower tubular portion 3e: Lower hole portion 3f: Rearward bottom surface portion 3g: Bottom ring convex portion 3h: Rear ring convex portion 3j: Horizontal lid-shaped portion 3k: Circular outer wall 3m: Circular inner wall 3n: Front ring convex portion 3p: Forward bottom surface portion 3q: Lateral tubular portion 3r: Cylindrical piston 3s: Front skirt Shaped part 3t: Sheath-shaped piston 3u: Rear skirt-shaped part 3v: Ring groove-shaped part 3w: Coil spring

S1: Cylinder internal front space area S2: Cylinder internal peripheral space area (intermediate space area in the front-rear direction)
S3: Cylinder internal rear space area

4: Stem 5: Housing 6: Aerosol container body 7: Mounting cup 7a: Undercut 8: Cover cap

Claims (5)

A content drop release structure used for the aerosol container body that contains the compressed gas and the content to be released.
A content pressure regulator located on the downstream side of the stem that acts as a valve,
A flow rate adjusting unit arranged on the downstream side of the content pressure adjusting unit,
A discharge passage portion arranged on the downstream side of the flow rate adjusting portion is provided.
A content drop release structure that is compatible with compressed gas. The content pressure adjusting unit is
A cylinder having an inflow part and an outflow part of the contents,
A piston that moves inside the cylinder based on the pressure of the contents and changes the flow path area of the outflow portion according to the amount of movement.
It comprises an elastic member that urges the piston in a direction opposite to the pressure-based movement of the contents.
The content drop release structure corresponding to the compressed gas according to claim 1. The discharge passage portion is
Formed on the operation unit for setting the operation mode
The content pressure adjusting unit is
The unit structure is set so that it can be attached to the stem and the operation unit.
The content drop release structure corresponding to the compressed gas according to claim 1 or 2. The discharge passage portion is
It has a flow direction changing part for the contents.
The content drop release structure corresponding to the compressed gas according to any one of claims 1 to 3. The content drop release structure corresponding to the compressed gas according to any one of claims 1 to 4 is provided, and the propellant for the compressed gas and the content to be released are contained.
An aerosol-type product characterized by this.

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